I've come up against this problem to many times now with no solution.
ZBD file or Outlook profile needs to be killed. Out the window go all of the users Auto-complete e-mail addresses for when they are replying or creating a new e-mail. Angry mob now forms...
In an Exchange environment those addresses are stored at the server level and synced with the Outlook client. Each time a user moves to a different machine or if I have to blow a Outlook profile they are still there. Not the case with Zimbra.
Pre O2K10 you had an n2k file that you could manually move and be good to go.
Any ideas on how you can get this list to be stored at the server level or in a Zimlet so that it is recoverable?